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Re: Comments on SVG 1.2 WD-6

From: Peter Sorotokin <psorotok@adobe.com>
Date: Thu, 13 May 2004 08:54:34 -0700
To: Thomas DeWeese <Thomas.DeWeese@Kodak.com>, www-svg@w3.org
Message-id: <>

At 04:16 PM 4/2/2004 -0500, Thomas DeWeese wrote:
>11.15 More rendering hints
>    It is unclear to me what the intended difference between 'cache'
>    and 'static' is.  Can you provide an example where a UA would act
>    differently between 'cache: true' and 'static: true'?
>    Is the intent that offscreen images only be created for
>    "cache:true; static:true"?

In short you can determine caching granularity with this information. For 
instance, cache="true" on a group can try to cache individual element 
renderings (say tesselations if I am using OpenGL to render it), so it is 
still easy to rerender the group if some elements move around or change 
(since cache="true" does not imply that elements in the group would not 
change). On the other hand, static="true" could cache the group as rendered 
offscreen ("texture" in OpenGL terms) and simply rerender that offscreen 
from scratch every time something changes.

Received on Thursday, 13 May 2004 11:53:29 UTC

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